Mammut - Sertig II Mid GTX - Walking boots
Tests & reviews

Mammut - Sertig II Mid GTX - Walking boots tested

4,5 (19)

Reviews overview

Our reviews are 100% genuine.
90%
recommend this product
Reviews
    • (12)
    • (5)
    • (2)
    • 2 stars
      (0)
    • 1 star
      (0)

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This is what other customers say:

Paul
21.08.2025
Buy at least 1 to 2 sizes above your usual

These boots,like my previous pair of Mammut boots, seem to use a different sizing system to the rest of Europe.
I am usually a shoe size 43 (UK 9) and have average width feet. I ordered these boots in size 44 2/3rd (UK10) which were too small. I think I'll need 45 1/3rd. Thus it is not easy to buy Mammut boots from an online retailer.

  • Advantages
    Size
  • Disadvantages
    Unique Sizing
No, I would not recommend this product to a friend

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Mike
09.06.2026 00:03

I agree that while the Mammut boots are well made and waterproof, the sizing is on the small side so much better to try them on first

Comment
This is what customers from around the world say:
Andrew
13.07.2023

75% have found the reviews
by Andrew helpful

  • Advantages
    Price / performance Lightweight Waterproof Comfortable
  • Recommended use
    Beginner Leisure Travel Trekking
Yes, I would recommend this product to a friend
Fred
15.12.2023

50% have found the reviews
by Fred helpful

  • Advantages
    Good grip Lightweight Stabilizes the foot Price / performance
  • Disadvantages
    Causes blisters
  • Recommended use
    Trekking Leisure
No, I would not recommend this product to a friend
Daniel
17.11.2022

50% have found the reviews
by Daniel helpful

  • Advantages
    Good grip Lightweight Finish Waterproof Comfortable
  • Recommended use
    Hiking Leisure
Yes, I would recommend this product to a friend
Roland
29.03.2026

46% have found the reviews
by Roland helpful

  • Advantages
    Lightweight Price / performance Finish Comfortable
  • Recommended use
    Travel Leisure Beginner Hiking
Yes, I would recommend this product to a friend
Wolfgang
15.08.2023

33% have found the reviews
by Wolfgang helpful

  • Advantages
    Price / performance Waterproof Finish Good grip Lightweight
  • Recommended use
    Trekking Leisure Beginner Travel Winter hiking Hiking
Yes, I would recommend this product to a friend
Moritz
15.03.2023

  • Advantages
    Price / performance Waterproof Finish Lightweight Comfortable Breathable
  • Recommended use
    Trekking Beginner Travel Hiking Leisure
Yes, I would recommend this product to a friend
KATHRIN
06.06.2026

  • Advantages
    Good grip Finish Stabilizes the foot Waterproof Robust Comfortable
  • Recommended use
    Hiking Trekking
Yes, I would recommend this product to a friend
Marcus
19.03.2026

7% have found the reviews
by Marcus helpful

Product images by Marcus
  • Advantages
    Finish Good grip Lightweight Comfortable Robust Price / performance Waterproof Stabilizes the foot
  • Recommended use
    Winter hiking Hiking Leisure Trekking
Yes, I would recommend this product to a friend
Björn
15.12.2025

  • Advantages
    Waterproof Comfortable Price / performance Good grip Lightweight Finish
  • Recommended use
    Winter hiking Hiking Leisure
Yes, I would recommend this product to a friend
fathi alfinur
25.07.2025

  • Advantages
    Robust
  • Disadvantages
    Bad grip
  • Recommended use
    Trekking
Yes, I would recommend this product to a friend
Matthias
03.04.2025

  • Advantages
    Lightweight Waterproof Price / performance Comfortable
  • Recommended use
    Hiking Trekking
Yes, I would recommend this product to a friend
Alexander
15.03.2025

  • Advantages
    Finish Lightweight Comfortable Good grip Waterproof Price / performance Breathable
  • Recommended use
    Leisure
Yes, I would recommend this product to a friend
Davide
20.01.2025

  • Advantages
    Lightweight Stabilizes the foot Waterproof Good grip Robust Comfortable
  • Recommended use
    Hiking
Yes, I would recommend this product to a friend
Michael
14.01.2025

Product images by Michael
  • Advantages
    Lightweight Comfortable
  • Disadvantages
    Not waterproof
  • Recommended use
    Travel
Yes, I would recommend this product to a friend
Johnny
12.01.2025

Product images by Johnny
  • Advantages
    Lightweight Good grip Breathable Finish Waterproof Stabilizes the foot Comfortable
  • Recommended use
    Hiking Beginner Trekking Travel Leisure Ultra-light
Yes, I would recommend this product to a friend
Rinaldo
16.10.2024

  • Advantages
    Price / performance Finish Lightweight Stabilizes the foot Durable Breathable Robust Waterproof Comfortable Good grip
  • Recommended use
    Trekking Leisure Hiking
Yes, I would recommend this product to a friend
Marius
16.11.2023

  • Advantages
    Waterproof Good grip Comfortable Lightweight Price / performance
  • Recommended use
    Leisure Hiking
Yes, I would recommend this product to a friend
Ildiko
15.10.2023

  • Advantages
    Finish Stabilizes the foot Comfortable Robust Durable Lightweight Price / performance Good grip Waterproof
  • Recommended use
    Leisure Winter hiking Travel Hiking
Yes, I would recommend this product to a friend